Firing order 350 vortex - 1995 Chevrolet Tahoe

SOURCE: firing order

HERE is your firing order. this truck did not come with vortec heads so either engine or heads ahve been swapped.

SOURCE: 350 firing order 1983 Chevy

18436572

SOURCE: chevy truck 350 vortex, won't start-cranks

ive had the same problem. turn the key and listen for the fuel pump. if you can hear it. good. next take the ignition control moduel off the truck. it's located above the coil pack on the passenger side and is not much bigger than your thumb. they cost about $85 or so at autozone. you may even be able to get yours tested. when i tryed to get mine tested we had to go by the paint mark because they were missing the harness. look for a paint mark on the back from the factory. it is either yellow or white. when they burn up the paint color changes from one to the other. the replacements don't have that.

SOURCE: firing order for chevy 350

Check this link. You didn't specify which motor is in it, so I don't want to give you the wrong one

http://autorepair.about.com/library/firing_orders/bl-chevrolet-firing-84.htm

Hope this helps. =)

SOURCE: diagram for the firing order on a 4.3 vortex chevy

For the 1993 Chevrolet S10 Blazer 4.3 V6, Both: 2WD AND 4WD:

Firing Order:
1-6-5-4-3-2

Cylinders:
.......(back).......
|..6..|.......|..5..|
|..4..|.......|..3..|
|..2..|.......|..1..|
......(front)

Distributor:
....(back)
(+).4...3
5...........2
..6...1..(+)-screw
.....(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!